Conrad charles schill



(No Model.)

G. C. SCHILL.

MACHINE FOR SGOURING GRAIN. No. 394,019. Patented Dec. 4, 1888.

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PATENT OFFICE.

OF EAST NElV YORK, N. Y.

MACHINE FOR SCOURING GRAIN.

SPECIFICATION forming part of Letters Patent No. 394,019, dated December 4, 1888.

i Application filed February l, 1888. Serial No. 262,601. (No model.)

To LZZ wiz/om it may concern:

Be it known that LCoNRAD CHARLES SCHILL, of East New York, county ot' Kings, and State of New York, have invented certain new and useful Improvements in Machines for Scouring Grain, ol'I which the following is a speciiication.

This invention relatos to an improved machine for scouring grain in a rapid and effective manner, soras to clean it trom adhering dust and impurities.

In the accompanying drawings, Figure l represents a side elevation of my improved machine for scouring grain shown with a part of the shell broken away. Fig. i3 is a vertical transverse section of the same, showing it surrounded by a dust-retaining casing, and Fig. 3 is a broken plan view of the rotary heaters.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the supporting-standards ot' my improved grainscouring machine. The standards are preferably made ot cast metal and connected in any suitable manner. The standards A support an approximately-cylindrical casing or shell, B,which is made of stout sheet metal and closed at the ends by head-plates B, that are, like the shell, made in two parts and connected by horizontal iianges,which are bolted together, as shown in Figs. l and 2.

At one side of the casing or shell B are arranged several groups of scouring-knives, C, each group being made in segmental form and supported by angle-irons dy and screwbolts a on the head-plates B of the casing B. The scouring-knives C of each group are arranged radially to the center of the shell B and supported equidistantlyfrom each other by means of interposed blocks b, all the blocks and knives being iirmly tied together by means of arc-shaped screw-bolts b,which are passed through holes in the blocks and knives and attached to the angle-plates u u, as shown in Fig. 2.

Each group of scouring-knives C is provided with exterior sheet-metal boxes D,which are provided with outlet-openings and outwardlybent detlectingplates D', as shown in the dust and other impurities scraped ott from the grain by the scouring-knives to the outside of the shell B.

The several groups of scouring-knives are preferably arranged either above or at the side of the beater-shaft, as shown in Fig. l, so that as the grain lifted by the beaters and stirred the dust and other impurities, which are lighter than the grain, will readily rise and be carried out ot the outlets, which are upward in the boxes D.

A beater-shaf t, E, is supported in suitable bearings of the head-plates B and rotated by a suitable belt and pulley. The beatereshat't E is provided with ribbed radial arms E and conn ectil'ig-disks E2, which are bolted to said arms, so as to impart a certain degree of rigidity to the same. To the outer ends of the radial arms E are attached longitudinal beaters F, that are supported at a slight direction to the longitudinal inclination to the axis of the shat't E, (not shown in the drawings,) so that the grain is gra lually screwed by the beaters through the shell, as customary in grain-scouring and other machines.

The entire machine is surrounded by an inclosing box or casing, G, of wood or other suitable material, the drivin g-pulley of the beatershaft E being arranged outside of said casing. A supply-trunk, F, passes through the exterior box, G, and at one side of the beater-shaft down to an opening,f,in the head-plate B near t-he lower part ot' the shell B,while the dischargespout f at the other end ot the shell B discharges the scoured grain from the shell B. The rapid rotation of the beaters throws the grain with considerable force against the pla-in or serrated edges ot' the scouring-knives, which exert thereby a cleaning action on the same, so as to remove the adhering dust and other impurities. These impurities are forced by strong air-currents produced by the rapid movement of the beaters through the interstices between the scouring-knives and the blocks to the outside of the shell, they being linally collected at the bottom ot' the inclosing-casing G. lVhen the grain has passed from one end to the other ot' the shell, it is finally conducted oft' in scoured state through the dischargespout to the outside of the ma- Eigs. l and 2, for the purpose of conveying chine for further treatment.

IOO

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination o' an approximately-cylindrical casing` or shell having a supplytrunk at one end and a discharge-spout at the opposite end7 rotary beaters in said shell, scourin g-knives arranged in segmental groups at the circumference of the shell, each group 1o being` formed of radial knives supported at 

